Security Bulletin: Qiskit SDK Vulnerability Allows Remote Attackers to Cause Denial of Service via Maliciously Crafted QPY File

Summary A maliciously crafted QPY file containing a malformed symengine serialization stream as part of the larger QPY serialization of a ParameterExpression object can cause a segfault within the symengine library, allowing an attacker to terminate the hosting process. Vulnerability Details...

Denial Of Service (DoS)

qiskit is vulnerable to Denial Of Service DoS. The vulnerability is due to improper handling of malformed symengine serialization streams within QPY files, allowing an attacker to trigger a segmentation fault in the symengine library using a malicious QPY file...

CVE-2025-1403 Qiskit SDK denial of service

Qiskit SDK 0.45.0 through 1.2.4 could allow a remote attacker to cause a denial of service using a maliciously crafted QPY file containing a malformed symengine serialization stream which can cause a segfault within the symengine library...

CVE-2025-1403

CVE-2025-1403 affects Qiskit SDK from 0.45.0 to 1.2.4, where a malicious QPY file with a malformed symengine serialization stream can trigger a segfault in the symengine library, enabling remote denial of service. The Red Hat, OSV, and IBM advisories confirm the vulnerability and provide remediat...